The city is located on a smoothly undulated plain typical of the Pampas, between 22.5 and 24.6 metres above mean sea level; the original settlement rests on the ravine on the right-hand shore of the Paraná, opposite a group of islands of the Paraná Delta which are partly in the jurisdiction of the province of Entre Ríos. The nearest city across the river's flood plain (60 km) is Victoria, Entre Ríos, linked to Rosario by the Rosario-Victoria Bridge.
Rosario lies on the ravine of the right-hand shore of the Paraná, about 24 metres (79 ft) above mean sea level, in a place with a natural slope to the low shore. The point of origin of the city is Plaza 25 de Mayo ("May 25 Square"), now surrounded by the municipality (Palacio de los Leones), the Basilica Cathedral of Our Lady of the Rosary, the Central Post Office, the Decorative Art Museum and a building called La Bola de Nieve ("The Snowball"). Between the Cathedral and the municipal building is Pasaje Juramento ("Oath Passage"), leading to the Flag Memorial. The streets mostly follow a regular checkerboard pattern
